Field Upgrade P5.1 (was Re: IDT SCSI (Re: I have a 2nd hard drive ...))
Lenny Tropiano
lenny at icus.islp.ny.us
Sun Oct 16 12:10:07 AEST 1988
In article <4976 at cbmvax.UUCP> ditto at cbmvax.UUCP (Michael "Ford" Ditto) writes:
|>In article <359 at uncle.UUCP> jbm at uncle.UUCP (John B. Milton) writes:
|>>/mnt on /dev/fp012 read/write on Mon Oct 10 20:03:21 1988
|>>That bit in MCR2 is indeed a select line for the second hard disk.
|>
|>Good work with the hardware hack, John!
|>
Yes, I have to applaud John as well!
|>
|>>the really important question: Since I came up with this patch on my own,
|>>using widely available information, do I have the right to do whatever
|>>I want with it?
|>
|>I'd certainly say so! (Unless CT can somehow prove that you used
|>privileged proprietary information, in which case your posting is a big
|>no-no, because you gave away the info to the world.) I'd say it's
|>practically spelled out in the .h files and schematics anyway; it's
|>just that nobody ever *knew* it would really work.
|>
I don't know what you heard, but I have spoken with Convergent Technologies
on various occasions. One of the marketing people there sent my an
"original" (1st generation) photocopy of the FIELD P5.1 UPGRADE. He
said (and I quote) "I will send you a good 1st generation photocopy if I
can forward all future requests to you." I agreed so again I offer my
assistance in getting the photocopies to the rest of you... I see *NO*
reason why anyone at AT&T or CT would mind since this information was given
to me legally. Both AT&T and CT want to forget the UNIX PC (S/50) and
go on to new work...
For those who missed my posting about 6 months ago, I'll again offer
to send anyone a photocopy of the 9 pages instructions for the FIELD
P5.1 upgrade of the UNIX PC motherboard. Once you receive these instructions
it is up to you to find someone to program the PAL with the equations
(included) and then you need to install 9 jumper wires to your motherboard.
Once this is done, and you turn on your machine you will see the P3..5
replace with P5.1. Then you will be able to install hard drives greater
than 8 heads. This gives you 1 more bit (4 bits total) so hard drives
up to 15 heads are now available.
Please send cash or check for $2.50 (to cover my costs of copying and mailing
back [shipping and handling]) to:
Lenny Tropiano
ICUS Software Systems
AT&T UNIX PC - Field Upgrade P5.1
PO Box 1
Islip Terrace, New York 11752
I also now have a copy of the special diagnostic disk that will allow
you to format greater than 1024 cylinders (if you do the WD1010 to WD2010
disk controller upgrade as well), partition your hard drive for multiple
partitions other than just "/". It has entries already in the table
for the *big* Maxtor drives (eg. 1140 and 2190). If you want this
please send cash or check for $5.00 (again to cover my time and costs for
mailing) in a *REUSABLE* disk mailer with a disk already formatted in
8 sectors per track (ie. fdfmt.nl) This is important that it is
pre-formatted. Please check your formatting with:
$ iv -vt /dev/rfp020
Floppy disk
Volume Name: Floppy
40 Cylinders. 2 Heads per Cylinder.
There are 8 Physical Sectors (of 512 bytes) per Track.
^^^^^^^^^^^^^^^^^^
...
If this says 10, please reformat as 8 sectors per track.
Mail this (again in a reusable disk mailer) to:
Lenny Tropiano
ICUS Software Systems
AT&T UNIX PC - Diagnostic Disk & P5.1 Upgrade
PO Box 1
Islip Terrace, New York 11752
I will return to you the diagnostic disk as well as the instructions
to the upgrade.
-Lenny
--
Lenny Tropiano ICUS Software Systems [w] +1 (516) 582-5525
lenny at icus.islp.ny.us Telex; 154232428 ICUS [h] +1 (516) 968-8576
{talcott,decuac,boulder,hombre,pacbell,sbcs}!icus!lenny attmail!icus!lenny
ICUS Software Systems -- PO Box 1; Islip Terrace, NY 11752
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